Hi,

First of all, thank you for your work and this project!

We use TinyDB as one backend, amongst others, inIVRE, and due to the way other backends work, we need to have an empty filter (an equivalent ofWHERE TRUE), that would:

• match every entry (for that point, something likelambda _: True works)
• be composable as a regular filter / query (that we could, for example, use like thisflt_empty & other_flt; for that point,lambda _: True won't work obviously).

With TinyDB < 4, we have been usingQuery() (no idea if that was a good idea, but that did work for both points we need). Starting with TinyDB 4, we cannot do that anymore, and we getRuntimeError: Empty query was evaluated exceptions.

Do you have something we could use for that?

Thanks!